Last modified by Xiaoling on 2023/07/18 10:12

From version 170.26
edited by Xiaoling
on 2022/06/22 11:16
Change comment: There is no comment for this version
To version 170.22
edited by Xiaoling
on 2022/06/22 11:07
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -18,30 +18,17 @@
18 18  
19 19  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20 20  
21 -
22 -(((
23 23  The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor.**
24 -)))
25 25  
26 -(((
27 27  The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
28 -)))
29 29  
30 -(((
31 31  LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
32 -)))
33 33  
34 -(((
35 35  LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
36 -)))
37 37  
38 -(((
39 39  LHT65N supports (% style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
40 -)))
41 41  
42 -(((
43 43  *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
44 -)))
45 45  
46 46  
47 47  == 1.2 Features ==
... ... @@ -58,8 +58,6 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 -
62 -
63 63  == 1.3 Specification ==
64 64  
65 65  
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84 84  * ±2°C accuracy from -55°C to +125°C
85 85  * Operating Range: -55 °C ~~ 125 °C
86 86  
87 -
88 -
89 -
90 90  = 2. Connect LHT65N to IoT Server =
91 91  
92 92  == 2.1 How does LHT65N work? ==
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257 257  * The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
258 258  
259 259  
242 +
243 +
260 260  === 2.4.1 Decoder in TTN V3 ===
261 261  
262 262  When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
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287 287  * BAT status=(0Xcba4>>14)&0xFF=11(B),very good
288 288  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
289 289  
274 +
275 +
290 290  === 2.4.3 Built-in Temperature ===
291 291  
292 292  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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297 297  
298 298  * Temperature:  (0xF5C6-65536)/100=-26.18℃
299 299  
286 +
300 300  === 2.4.4 Built-in Humidity ===
301 301  
302 302  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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303 303  
304 304  * Humidity:    0x025C/10=60.4%
305 305  
293 +
306 306  === 2.4.5 Ext # ===
307 307  
308 308  Bytes for External Sensor:
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455 455  * Sync time OK:  1: Set time ok,0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
456 456  * Unix Time Request:  1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
457 457  
446 +
447 +
458 458  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
459 459  
460 460  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
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530 530  1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
531 531  
532 532  
523 +
524 +
533 533  === 2.6.2 Unix TimeStamp ===
534 534  
535 535  
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918 918  * For each success downlink, the PURPLE LED will blink once
919 919  
920 920  
913 +
914 +
921 921  == 2.9 installation ==
922 922  
923 923  (% _mstvisible="1" %)
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953 953  * Working voltage 2.35v ~~ 5v
954 954  
955 955  
950 +
951 +
956 956  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
957 957  
958 958  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
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996 996  
997 997  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
998 998  
995 +
999 999  == 4.2 Set External Sensor Mode ==
1000 1000  
1001 1001  Feature: Change External Sensor Mode.
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1017 1017  
1018 1018  * 0xA20702003c: Same as AT+SETCNT=60
1019 1019  
1017 +
1018 +
1020 1020  == 4.3 Enable/Disable uplink Temperature probe ID ==
1021 1021  
1022 1022  (((
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1044 1044  * **0xA800**  **~-~->** AT+PID=0
1045 1045  * **0xA801**     **~-~->** AT+PID=1
1046 1046  
1046 +
1047 +
1047 1047  == 4.4 Set Password ==
1048 1048  
1049 1049  Feature: Set device password, max 9 digits
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1091 1091  * There is no downlink command to set to Sleep mode.
1092 1092  
1093 1093  
1095 +
1096 +
1094 1094  == 4.7 Set system time ==
1095 1095  
1096 1096  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1188 1188  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1189 1189  
1190 1190  
1194 +
1195 +
1191 1191  == 4.13 Auto Send None-ACK messages ==
1192 1192  
1193 1193  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1202 1202  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 171px;" %)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|=(% _mstvisible="4" style="width: 219px;" %)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|=(% _mstvisible="4" style="width: 119px;" %)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response**
1203 1203  (% _mstvisible="3" %)|(% _msthash="1231321" _msttexthash="130455" _mstvisible="4" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" _mstvisible="4" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" _mstvisible="4" style="width:119px" %)OK
1204 1204  
1210 +
1205 1205  (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1206 1206  
1207 1207  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1208 1208  
1215 +
1216 +
1209 1209  = 5. Battery & How to replace =
1210 1210  
1211 1211  == 5.1 Battery Type ==
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1612 1612  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1613 1613  
1614 1614  
1623 +
1624 +
1615 1615  = 8. Packing Info =
1616 1616  
1617 1617  
... ... @@ -1618,17 +1618,23 @@
1618 1618  **Package Includes**:
1619 1619  
1620 1620  * LHT65N Temperature & Humidity Sensor x 1
1621 -* Optional external sensor
1622 1622  
1632 +*Optional external sensor
1633 +
1634 +
1623 1623  **Dimension and weight**:
1624 1624  
1625 1625  * Device Size:  10 x 10 x 3.5 cm
1638 +
1626 1626  * Device Weight: 120.5g
1627 1627  
1641 +
1642 +
1628 1628  = 9. Reference material =
1629 1629  
1630 1630  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1631 1631  
1647 +
1632 1632  = 10. FCC Warning =
1633 1633  
1634 1634  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: